The answer is the second one
The object's maximum height is the same as the y-coordinate of the vertex.To find that, first, finds the x- coordinate(t).You can find it by:
first identifying a,b and c.Multiply the b by negative 1 or simply change its sign and divide it by 2a.Afterward, plug the answer in the equation to find y, your answer.
(ax+bx²+c=-16t²+64t+80). Therefore, a=-6, b= 64 and c=80
-64/2(-16)=-64/-32=2
-16(2)²+64(2)+80=144 ft
So the maximum height of the object, when launched 64ft/sec from a platform that is 80 ft high, is 144 ft
Hope this helps(there are other methods)
Answer:
x=5.6
Step-by-step explanation:
The equation is
2/1.6=7/x
1.25=7/x
1.25x=7
x=7/1.25
x=5.6
I got 130.24 square feet. Hope that helps.
Well, we know the eagle does 50 miles in 1hr, how long will it be for 125 miles?
well
so, the eagle for 125miles does them in 5/2 hours or 2hrs and a half
now, how far will the sterling go in 2hrs and a half?
well, we know the sterling does 75 miles in 1hr
thus
solve for "x"